Refer to the Exhibit.
On Switch-1, all configured interfaces belong to the default VLAN. Based on the topology and bridge table shown in the exhibit, which two operations will Switch-1 perform if it receives a frame sent by User A with a destination MAC address of 00:26:88:02:74:89? (Choose two.)
A.
Switch-1 will flood the frame out all switch ports that belong to the default VLAN.
B.
Switch-1 will flood the frame out all switch ports except ge-0/0/6.0.
C.
Switch-1 will forward the frame out ge-0/0/9.0.
D.
Switch-1 will update its bridge table with a new MAC entry for the device associated with User A.
Explanation:
The packets that are forwarded within a bridge domain are determined by the VLAN ID of the packets and the VLAN ID of the bridge domain. Only the packets with VLAN IDs that match the VLAN ID configured for a bridge domain are forwarded within the bridge domain.Layer 2 Bridging Exceptions on SRX Series Devices
The bridging functions on the SRX3400, SRX3600, SRX5600, and SRX5800 devices are similar to the bridging features on Juniper Networks MX Series routers. However, the following Layer 2 networking features on MX Series routers are not supported on SRX Series devices:
* Layer 2 control protocolsThese protocols are used on MX Series routers for Rapid Spanning Tree Protocol (RSTP) or Multiple Spanning Tree Protocol (MSTP) in customer edge interfaces of a VPLS routing instance.
* Virtual switch routing instanceThe virtual switching routing instance is used on MX Series routers to group one or more bridge domains.
* Virtual private LAN services (VPLS) routing instanceThe VPLS routing instance is used on MX Series routers for point-to-multipoint LAN implementations between a set of sites in a VPN.In addition, the SRX Series devices do not support the following Layer 2 features:
* Spanning Tree Protocol (STP), RSTP, or MSTPIt is the users responsibility to ensure that no flooding loops exist in the network topology.
* Internet Group Management Protocol (IGMP) snooping
* Double-tagged VLANs, or IEEE 802.1Q VLAN identifiers encapsulated within 802.1Q packets (also called Q in Q VLAN tagging)Only untagged or single-tagged VLAN identifiers are supported on SRX Series devices.
* Nonqualified VLAN learning, where only the MAC address is used for learning within the bridge domainVLAN learning on SRX Series devices is qualified; that is, both the VLAN identifier and MAC address are used.